Grease traps installed inside buildings must have what features?

Grease traps installed inside buildings must have what features?

• A. Ventilation only
• B. Sealed cover only
• C. Sealed cover and properly vented
• D. Open top

Answer: (C)

Grease traps inside a building must both keep contaminants contained and allow air to move freely as waste flows. The best design includes a sealed cover to prevent odors from escaping, deter pests, and protect people working nearby, plus proper venting to the trap so air can enter and exit with flow, preventing pressure changes that could siphon the water seal. If there’s no vent, the trap’s seal can be drawn out or gases pushed back into the building; if there’s no sealed cover, odors and pests can escape and the trap isn’t protected from contamination. An open top would fail on both counts.

Grease traps inside a building must both keep contaminants contained and allow air to move freely as waste flows. The best design includes a sealed cover to prevent odors from escaping, deter pests, and protect people working nearby, plus proper venting to the trap so air can enter and exit with flow, preventing pressure changes that could siphon the water seal. If there’s no vent, the trap’s seal can be drawn out or gases pushed back into the building; if there’s no sealed cover, odors and pests can escape and the trap isn’t protected from contamination. An open top would fail on both counts.